| Business | Phone |
| Alliance Wireless Technologies 6001 Stonington St 170, Houston 77040 | (713) 690-4100 |
| Damon Communications 6559 Wanda Ln, Houston 77074 | (713) 778-0134 |
| Advanced Communications Of Tx 9434 Old Katy Rd 400, Houston 77055 | (713) 827-7971 |
| Cinema 2-Way Radio Inc 5000 Katy Fwy, Houston 77007 | (713) 877-8525 |
| Commercial Wireless Solutions 11315 Katy Fwy, Houston 77079 | (713) 464-5000 |
| Cougar Communications 17036 W Little York Rd # 450, Houston 77084 | (281) 550-1277 |
| Dataradio-Cor Ltd 5706 Vestavia Dr, Houston 77069 | (281) 444-8686 |
| Davenport Electronics 4318 Amber Lake Dr, Houston 77084 | (281) 856-9537 |
| Delt Communications 5171 Kingfisher Dr, Houston 77035 | (713) 728-4706 |
| Monarch Radio Inc 2335 Naomi St, Houston 77054 | (713) 790-9500 |
| Lucky Tire 2001 Gessner Dr, Houston 77080 | (713) 984-8684 |
| Lci Houston 77098 | (713) 524-0599 |
| Hy-Tech Electronics 2 Way 8805 Solon Rd # G3, Houston 77064 | (281) 235-5870 |
| Houston 2 Way Radio 5805 Centralcrest St, Houston 77092 | (281) 842-7393 |
| National Radio 419 Century Plaza Dr 240, Houston 77073 | (281) 443-1999 |